Akrit
钴铬钨工具合金, 钴铬钨系刀具用铸造 合金, 特硬耐磨合金
🗣️ 情景例句
Fine. How much would you like to exchange, sir?
好的。您要兑换多少呢，先生？
I'm awfully sorry.
真是对不起。
That does not prove that it does not exist;
这并不是证实不存在噪音对健康的影响。